Systems and methods for spurious emission cancellation
US8204456B2 · kind B2 · utility
80Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2010 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Dec 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0425
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In accordance with some embodiments of the present disclosure, a method may include digitally pre-distorting a digital baseband signal with an opposite phase of a C-IM3 distortion term such that the pre-distortion and C-IM3 distortion cancel each other out in a transmitter. The method may also include digitally conditioning the pre-distorted digital signal in order to provide a flat amplitude response of a composite filter comprising a baseband filter and a digital half-band filter of the transmitter, and to provide a linear phase response for the composite filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.